Nordyne M1GH 056 Installation Instructions And Owner's Manuals page 17

!
WARNING:
FOR YOUR SAFETY; WHAT TO DO IF
YOU SMELL GAS:
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use
any phone in your building.
• Immediately call your gas supplier from a
neighbor's phone. Follow the gas supplier's
instructions.
• If you cannot reach your gas supplier, call the
fire department. Should overheating occur or
the gas supply fail to shut off, disconnect the
power at the main circuit breaker and then see
"To Turn Off Gas To Appliance."
OPERATING INSTRUCTIONS FOR
OIL AND GAS GUN FURNACE:
Oil Gun Model
M1 oil gun furnaces may be converted to gas gun in the field
by using the proper conversion kit listed in the RPL.
If your furnace model number begins with M1S*, the furnace
is equipped with an ignition device which automatically lights
the burner.
Do not try to light this furnace manually.
a. Open all valves in the oil line.
b. Be sure the fire door is closed.
c. Set the thermostat to the lowest temperature setting.
d. Push the "RED" reset button on the burner primary
control.
e. Set the On-Off switch to "ON".
f. Set the thermostat to the desired setting.
g. If the burner does not light, repeat step "d".
h. If the burner still does not light, call your qualified service
technician.
SEQUENCE OF OPERATION FOR
OIL GUN MODELS
a. On a call for heat, if the CAD cell sees darkness, the
thermostat contacts close - energizing the burner. The
electrode starts sparking.
b. If the CAD cell sees light, the oil burner will not operate.
This is a built-in fail safe which will not allow the burner to
fire if there is already fire in the combustion chamber.
c. If the resistance reading from the CAD cell (which the
primary control is sensing) does not drop to 300 to 1000
ohms, the oil burner will attempt ignition for 45 seconds,
after which it will lock out on safety.
d. To reset the oil burner, the red button on the primary
control must be reset.
e. When call for heat is satisfied, the thermostat contacts
open, and the burner will stop.
! WARNING:
If furnace still does not light, turn the furnace off
(described above) and call your technician. In the
event of any flashback or explosion, immediately
shut off furnace and call your service technician.
Gas Gun Models
M1 gas gun furnaces may be converted to oil gun in the field
by using the proper conversion kit listed in the RPL. Note that
in addition to the oil gun a new limit and combustion chamber
must be added to convert from gas to oil.
If your furnace model number begins with M1B*, the furnace
does not have a pilot. Ignition is accomplished automatically
by a silicon carbide hot surface ignitor. A control module takes
care of all lighting and timing functions. There are no external
relays or timing devices.
Do not try to light this furnace manually.
The control module is not field serviceable.
1. Before operation, smell all around the furnace for gas. Be
sure to smell next to the floor because some gas is
heavier than air and will settle on the floor. If you smell
gas, STOP! and follow the safety instructions below. If
you don't smell gas, go to the next step.
2. Set the thermostat to the lowest setting.
3. Turn off all electric power to the appliance.
4. This appliance is equipped with an ignition device which
automatically lights the burner. Do not try to light the
burner by hand.
5. Honeywell - push in the gas control knob and turn clockwise
to "OFF." Robertshaw - push the gas control lever to
"OFF." NOTE: The lever cannot be placed in the "OFF"
position unless it is pushed in slightly. DO NOT FORCE
(See Figures 30 & 31).
6. Wait ten minutes to clear out any gas. If you then smell
gas, STOP! and follow the safety information on the
preceding page. If you don't smell gas, go to the next step.
7. Set the On-Off switch to the "ON" position.
8. Honeywell - turn knob on gas control counter clockwise to
"ON." Robertshaw - push the gas control lever to "ON."
9. Turn on the electric power to the appliance.
10. Set the thermostat to "Heat" and/or the desired temperature
setting. The furnace should light in approximately 45
seconds. If the appliance will not operate, follow the
instructions "To Turn Off Gas To Appliance" and call your
service technician or gas supplier.
In the event of any flashback or explosion, immediately
shut off the furnace and call your service technician.
SEQUENCE OF OPERATION FOR
GAS GUN MODELS
a. On a call for heat, the furnace control begins an ignition
sequence which lasts approximately 45 seconds.
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